* {
    padding: 0px;
    margin: 0px;
    color: #fff;
}

html, body, #app {
    margin: 0px auto;
    height: 100%;
    overflow: hidden;
    justify-content: center
}

.flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

main {
    background-image: url(bg.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: auto 100%;
    width: 800px;
    height: 500px;
}

header {
    padding: 20px;
}

#contact {
    text-align: right;
}

header h3 {
    font-family: 楷体;
}

header h3 {
    letter-spacing: 3px;
}

.msg {
    text-align: right;
    padding: 0px 20px;
    color: yellow;
    font-weight: bold;
}

.msg h2 {
    display: inline;
    color: yellow;
}

#pane {
    align-items: start;
    margin: 20px 0px;
}

.btns {
    padding-top: 20px;
}

.btns a {
    cursor: pointer;
    opacity: 0.95;
}

.btns a:hover {
    opacity: 1;
}

a {
    text-decoration: none;
}

.btns a {
    text-align: center;
    width: 70px;
    display: block;
    margin: 20px 0px 40px;
    padding: 10px 50px;
    color: blue;
    background-image: url("bg-btn.png");
    background-size: auto 100%;
    border: 0px;
}

.btns a.left {
    border-radius: 0px 15px 15px 0px;
}

.btns a.right {
    border-radius: 15px 0px 0px 15px;
}

.btns a.hidden {
    visibility: hidden;
}

#info {
    flex: auto;
    text-align: center;
}

#info h2 {
    font-weight: normal;
}

#info > form {
    padding: 20px;
    line-height: 50px;
}

#info * {
    vertical-align: middle;
}

#info input, #info select {
    padding: 5px 10px;
    color: #333;
    letter-spacing: 2px;
    border-radius: 10px;
    text-align: center;
    width: 250px;
    height: 20px;
    box-sizing: content-box;
}

option {
    color: #333;
}

.center {
    text-align: center;
}

.left {
    text-align: left;
}

.right {
    text-align: right;
}

#info > form > table {
    line-height: normal;
    width: 100%;
}

table th:nth-child(3), table th:nth-child(4), table td:nth-child(3), table td:nth-child(4), table th:nth-child(5), table td:nth-child(5) {
    text-align: right;
}
